RAO Cai-jie, FANG Jian-cheng. A way of extracting observed stars for star image simulation[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 129-135
RAO Cai-jie, FANG Jian-cheng. A way of extracting observed stars for star image simulation[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 129-135DOI:
A highly efficient and adaptive way of extracting observed starts from the sky is proposed according to the characteristics of celestial coordinates for real-time computer simulation of star images. By calculating the vertical FOV span to ameliorate the zoning method
an improved zoning method is proposed for identification of nodes in the zone of celestial sphere. Measures to improve its efficiency further
such as shortening span of zone
coordinate transformation
and two-step extraction
are discussed as well. Analyses indicate that the method proposed is highly efficient and adaptive
and suitable for real-time simulation of star images
and its logic description is simple to program.
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references
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